Chennai Metropolitan Water Supply And Sewerage Board Tender

Supplying and Laying D.I. pipes (K7) as per IS 8329/2000 including earthwork excavation for trenches in hard stiff clay, stiff black cotton, hard red earth, shales, murams, gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil, depositing the earth on banks with initial lead of 10m and lift 2.00m carting of pipes , lowering into trenches and aligning, refilling the trenches with excavated soil, watering and ramming to consolidationet., complete for the pipes of dia meter 1.5m depth .(Including backfilling). as per schedule.

100mm dia K7 DI Pipes at 1.5 m depth.

Barrication work along one side of the trench for laying the pipe line with casurina post 1.52m centre to centre (8 to 10 cm dia. And 1.52m height) verticals, painting the verticals, painting the vertical posts in different colours, tieing with coir rope, fixing danger flags, danger lights, reflectors including watching during night for 1metre.

Supplying ,Conveying and fixing of Specials (IS 1538/1986)

100 mm dia DI D/F 90 degree bend

100 mm dia 90 degree Duck foot bend

100mm dia MJ Collar

100mm dia SV Valve with tail piece (IS14846/2000)

150mm x 100mm dia reducer (IS 1538/1986)

80mm Air valve

100x100 mm DI S/S/F tee

Cutting D.I. mains

100mm dia Pipes

Connection work to existing main including cuting existing pipe, fixing branches, collars, lead jointing and bailing out water, etc., excluding excavation. Cutting 150mm to 100mm (6” to 4”) D.I. pipe

Hire charges for diesel pumpset for 7. 5 HP with fuel and operator charges including transportation.

Testing of D.I.pipes with hydraulic testing equipment by fillling with water and testing to recommended pressure in convenient stretches and attending the bursts if any occurred during the test, excluding the cost of pipes, including other incidental and operational charges,etc., complete.

100mm dia DI Pipes

Construction of Sluice Valve chamber Construction of Sluice Valve Chamber of following sizes in second class brick work in CM 1:4 proportion with 12 mm thick outside plastering and 20mm thick inside plastering in CM 1:3 proportion, RCC cover slab in CC 1:2:4 proportion using 20 mm jelly, chamber foundation and bed block in PCC 1:3:6 proportion using 40 mm jelly including cost of reinforcement and labour charges, CI steps, etc. as per drawing. For 100 to 250mm dia Sluice valve including providing and fixing L.S.Cover and frame of size 60x60cm. For size 1.35m x 1.20m x 1.55m

Construction of water meter chamber of size 2m x 1.5m x 2m for mounting 80 mm dia water meter as directed by the Board Engineers.

Supplying and fixing of Electromagnetic Flow Meter shall be a velocity sensing Electromagnetic type,microprocessor based signal converter, sealed housing, flanged tube meter for 1.0Mpa working pressure, manufactured to highest standard available for mag-meters,equipped with minimum six digit digital totalizers, reading in different units (Kiloliters /Cubic meter) and shall be accurate within 0.5% of Measured value, shall operate within a range of 0.3 m/sec to 4 m/sec and be constructed as follows: Meter tube (Sensor) shall be fabricated from stainless steel tube and use class PN10 flat face carbon steel flanges in accordance with IS 1538. These flanges shall be welded to the flow tube. The internal and external of the meter tube shall be blasted to near white and lined with hard rubber/ Polyurethrene/ PTFE preferably by SBR or EPDM. Meter tube shall have a constant nominal inside diameter offering no obstruction to the flow. The accuracy should be inclusive of linearity, hysteresis, repeatability, temperature and pressure effects. Coil Housing shall be fabricated from stainless steel (SS304)/ Die cast Aluminium/ Carbon steel with anticorriosive paint for corrosion resistance and welded to the tube providing a completely sealed environment for all coils, electrode connections and wiring harness capable of submerged or buried operation with IP68 Protection. Signal Converter shall be pulsed DC coil excitation type with auto zeroing. The signal converter shall be remotely mounted away from the meter. The converter shall indicate direction of flow and provide a flow rate indication and a total of flow volume for both forward and reverse directions. The converter shall provide an isolated 4-20 mA output into minimum 500-ohm load and a frequency output of a maximum of 0-10 KHZ and a scaled pulse output. The microprocessor based signal converter shall have a self-diagnostic test mode and a backlit display that continuously displays “Rate of Flow” and “Total Volume”. Converter shall be supplied with a programmable low flow drop out, higher flow and empty pipe zero return. The signal converter housing should be die-cast aluminum with glass window. The converter cum transmitter should be fully programmable from the front facia. The programming should beuser friendly, self-prompting menu driven. Flow meter test calibration certificate from FCRI, flow test lab / NABL accredited lab to be furnished.(100 mm)

Supplying ,Conveying and fixing of Specials (IS 1538/1986)

100mm D/F DI pipe length 0.5m (IS 8329/2000)

100mm x 100mm F Spigot tail piece

Dismantling joint for flow meter

Cement concrete 1:2:4 using Crushed stone sand (Msand) and 20mm gauge hard broken stone jelly & SRC for plain concrete works including laying ramming curing, etc., complete.(for supporting special)

Cement concrete 1:3:6 using Crushed stone sand (M sand) and 40mm gauge hard broken stone jelly for plain cement concrete works including laying in layers of not more than 15cm thick including ramming curing, etc.,complete.(Road cut restoration)

Incidental charges during execution of work along pipe laying, for the following works:

Providing House service connection: Supplying,laying jointing and testing UPVC pipe including earthwork excavation for trenches in hard stiff clay, stiff black cotton, hard red earth, shales,murams, gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil,depositing the earth on banks with initial lead of 10m. lowering the pipes into the trenches, aligning,refilling the trenches with excavated earth in layers of not more than 23cm thick watering, ramming to consolidation and disposal of surplus earth etc., complete. 110mm dia upto a depth of 1.5m

Supplying & laying 150mm dia CS PVC casing pipes across Storm Water Drain

Hire charges for power breaker to dismantle the side walls of SWD

Cement concrete 1:2:4 using Crushed stone sand (Msand) and 12 to 20mm gauge hard broken stone jelly for plain concrete work including laying compacting curing,etc., complete